Firewall Policies

The firewall policies of the FortiGate are one of the most important aspects of the appliance. There are a lot of building blocks and configurations involved in setting up a firewall and it within the policies that a lot of these components come together to form a cohesive unit to perform the firewall's main function, analyzing network traffic and responding appropriately to the results of that analysis.

There are a few different kinds of policies and in most cases these are further divided into IPv4 and IPv6 versions:

IPv4 Policy - used for managing traffic going through the appliance using IPv4 protocols

IPv6 Policy - used for managing traffic going through the appliance using IPv6 protocols

NAT64 Policy - used for managing traffic going through the appliance that converts from IPv6 on the incoming interface to IPv4 on the outgoing interface

NAT46 Policy - used for managing traffic going through the appliance that converts from IPv4 on the incoming interface to IPv6 on the outgoing interface